This is Oculus' first consumer product and, bizarrely, it's on a Samsung device. Oculus VR CTO John Carmack personally led the mobile software development team at Oculus, and the software interface is all built in collaboration with Samsung. It's basic: Point a reticle in the middle of the screen at what you want to select and tap the touchpad to select it. The options are sparse and base level, and the only content management that exists right now is a store of sorts. It looks like the Google Play store to an extent, except it's floating in space.
There were a few demos to check out, and they were mostly video. The aforementioned Cirque du Soleil performance that puts you directly on stage for the show was a standout, as was an underwater game where a whale floated past. None of this was meant to demonstrate launch content, but to demonstrate the potential of the hardware.